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Digital Electronics - Shift Registers

Exercise : Shift Registers - General Questions
6.
How can parallel data be taken out of a shift register simultaneously?
Use the Q output of the first FF.
Use the Q output of the last FF.
Tie all of the Q outputs together.
Use the Q output of each FF.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
What is meant by parallel load of a shift register?
All FFs are preset with data.
Each FF is loaded with data, one at a time.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
What does the output enable do on the 74395A chip?
It determines when data can be loaded.
It forces all outputs to go HIGH.
It forces all outputs to go LOW.
It activates the three-state buffer.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
To operate correctly, starting a ring shift counter requires:
clearing all the flip-flops
presetting one flip-flop and clearing all others
clearing one flip-flop and presetting all others
presetting all the flip-flops
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
In a 6-bit Johnson counter sequence there are a total of how many states, or bit patterns?
2
6
12
24
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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